how to use linprog?

Error using linprog (line 233)
The number of columns in A must be the same as the number of elements of f.

Error in code3 (line 283)
 x=linprog(f,D,y);

i got this error while using linprog

the dimensions are A N*2N, y N*1 and i need coefficients of dimension 2N*1 via l1 minimization. Is it possible? What do i do with the variable f in the function?

Answer 1

[Matt J]

Check that the length of f matches the number of columns of A.

[Prashanna Jain]

can you please elaborate?

[Prashanna Jain]

what exactly is the significance of f?

[Matt J]

Did you write code3? The error message says that it contains the line

x=linprog(f,D,y);

It is required that length(f) = size(D,2).

[Prashanna Jain]

yes i wrote code 3. okay i will look into it

[Matt J]

OK.